Window shade



2 Sheets- Sheet 1 H. W. METCALF WINDOW SHADE Filed Nov. 6, 1925 Feb. 11927.

' I 1 616 385 Feb. 1 9 H. w METCALF WINDOW SHADE Filed Nov. 6. 1925 2Sheets-Shet 2 1: i I i 7 ggwiz/yw anemic a:

w may be brought Pate'nted Feb. 1, 1927.

' UNITED STATES PATENT OFFICE.

may wmcox mnrcm, or nonommu, 'rnanrronr or nwm wnrnow SHADE.

Application filed November 6, 1925. Serial Ho.- 67,407.

' tically no impediment, at the same time totally excludes the glarefrom'direct sun light, and entirely occludes the visibility of objectsthrough the shade.

A more specific object of the invention isthe provision of a windowshade constructed with vertically telescopic sections having means forlimiting the range of opening movement of the sections so that onealways intersects the lane of the lower edges 0 another, where y acontinuous barrier is interposed to the passage through said shade ofrays of light travelling in straight lines, while at the same time amplepassages are provided between the several sections for the circulationof air and the reflection of' diffused light. a

A further object of the'invention is the provision of telescopicsections tiltably mounted so that the weather sides thereof into closeoverlapping relation for the exclusion oi draughts or winddrivenrainfall.

The invention also includes .among its objects the provision of meansfor adjustably lowering the shade from thetop, raising it from thebottom, or latching it in stormclosed position.

Other objects of the invention will appear as the following descriptionof a preferred embodiment thereof proceeds.

In the drawings Figure 1 is a front elevation of a casement equippedwith a window shade embracing the principles of the present invention.Figure 2 is a sectional elevation, part being broken away, showing theshade in closed position, with the operating means therefor. Figure 3'is a section taken along the line 3-3 of Figure 2. v Figure 4 is a viewsimilar to Figure 3, but showing the window shade raised from thebottom. 1

Figure 5 is a plan view of a portion of one of the telescopic sections.

Fi e 6 is an .enlarged sectional view of the ower portion of the windowshade, slightly raised.

Figure 7 is a sectional view showing a detail of the lower portion ofthe window shade with the parts tilted to a position in which.

the shade is latched in storm-closed position.

Figure 8. is an end view of the top section showing the cord attachingmeans and guide rollers.

Figure 9 is a plan view of the end portion shown in Figure 8.

Referring now in detail to the several figures, the numeral 1 representsa casement to which the device of the present invention is applied. Thecasement 1s furnished with an inwardly directed flange 2, 3 and 4,F'gure; ort

3, extendin therearound except for 'a f distance at ach side adjacentthe bottom of the easement where there is a break 5. The

purpose of this break in the continuity of said flange will be explainedin due course. Said flange interleaves with the adjacent shade parts tototally exclude the assage of light or rain between the shade an thewalls of the casement. The upper flange 2 is preferably positionedbetween channelled members- 28 and 29, the latter being suitably securedto the wall of the easement and serving the purpose of housing forcertain pulleys and portions of certain cords hereinafter to bedescribed, by means of which the shade is operated, thereby avoiding thenecessity of mortising the easement, although if desired, the channelledmembers may be omitted, if mortising is to be practiced, in which casethe flange 2 may be secured directly to the casement.

The window shade proper includes a top section 6, a bottom section 7 andintermedlate telescopic sections 8, the latter sections each having theshape of an inverted trou h of V section, the bottom section being teescopic within the section which lies immedi-' ately above it. The topsection is preferably formed of sheet metal, as a parallelepipedal bodyextending the full width of the casement and having a slot 9 running 10tudinally along the top side thereof, into w 'ch slot the flange 2 atthe top of the easement extends when the to section 6 is in its uppermostposition illustrated in Figure 3, thus forming a light andwind-tight joint between the top section and the lime] of the easement.The ends of the top section are rovided with slots embracing the lateralan e portions 3 of the easement.

e uppermost of the telescopic sections 8 is loosely. fastened along theapex of its 5 m a rectangular path by said flange portions.

dihedral angle medially of the'underneath surface of the to section by aseries of fastoning means suc as bolts 11. In order to through saidcrack.

When the shade is folded the telescopic sections 8 nest one within theother, as shown in the lower part of Figure 4, and, when theshade isextended, they separate from'one another by a distance permitted by theseries of bolts 13, said bolts being loosely mounted in slots 14 (Figure5) so that they hang substantially vertically in all positions of thetelescopic sections and slip freely through the slots 14 when thesections are moved relatively to one another. The slots 14 on the inneror house side of the shade are out directly through said sectionsadjacentthe edges of the sections on the inner or house side ofthe'latter, whereas on the-outer or weather side of the shade the slots14 are formed in lugs 15 projecting from the edges of the sections onthe outer or weather side of the shade. This is to facilitate thetilting of the sections to stormclosed position, as will presently beexplained.

As shown in Figure 5, there are two slots 14 adjacent each end of eachedge of each of the telescopic sections except the uppermost andlowermost of same, each slot being occupied by a bolt, as best shown inFigures 1 and 2. One of said bolts, designated as 16 in Figure 2,depends from the section 8 next above, whereas the other bolt,designated as 17 in said figure, suspends the section next below. Asshown in Figures 1 and 2, the bolts of the several sections areprogressively misaligned in 'order that they may, when the telescopicsections are nested, assume side-by-side positions without colliding.The edges of the sides of the telescopic sections are cut away at 19 toac commodate-the bolts when they are in side-b -side osition.

Eac of t e telescopic sections, viz: each of the sections ..except theuppermost section '6, has a groove 18 in each of its ends to receive oneof the" flan p ansn aflording means whereby t e shadief is' guided Thereare two independent cords 20 and 25 each forming an endless belt, onearranged on each side of the lateral and top portions .of the guidingflange. Each cord passes over a pair of single pulleys 21 mor-' tised atopposite sides into the sill of the easement, and a air of doublepulleys 22,

referably hou in the channelled memrs 28 and 29. One limb of one'cord,that is to say the cord designated by the reference character 20 inFigure 5,. passes through an apertured lug 30 formed on a block 31carried at the end of the bottom section 7,

said limb being fastened to said lug by a 'set screw 32. At the otherside of the casesection 6 is provided at its ends with blocks 33 havingprojecting lugs 34 which are at- I tached to those limbs of the othercord 25 which are travelling in the same direction.

The blocks of both top and bottom sections are preferably furnished withrollers 35 which bear against the side flanges 3 in the ascent anddescent of the shade, constitut ing non friction guide elements for saidshade.

' It is apparent from the above description that the shade may belowered from the top by manipulating the cord 25 or raised from thebottom by manipulating suitable portions of the cord 20, the shade beingraised or lowered, as the case may be, an even distance on both sides.

In the shown in p in Figure 6, an open passageway is formed between thesides of adjacent sections permitting the free circulation of air fromone side of the shade to the other and also permitting the entrance ofdifl'used light reflected from the sloping sides of the telescopicsections. It is apparent that no direct rays of lightcan enter a roomprotected by the shade when it is in this position, nor can objects onone side thereof be ositions of the telescopic sections observed fromthe other side, since light,

also travels in straight lines, and an apex of an underlying telescopicsection intersects the plane embracing the lower edges of the sectionsimmediately above it.

It is sometimes desirable, however, to ex elude some of. the air thatotherwise would enter, as well as to shut out draft or a wind-drivenrain. To accomplish this the telescopic sections, including the bottomsection are made tiltable' so that the outer sides 'thereof assume anoverlapping relation of shingle-like closeness. The cut away portions 19are made sufficient] wide to permit this tilting movement of tiesections. In order to latch the shade in stormclosed position the bottomsection is lifted the lower ends of the flange portions 3 until itassumes theposition shown in Figure 7, which position is retained byvirtue of the igures 3 and 4 and particularly 1 engagement of the loweredge thereof with the flange portion 4. The tautness of the cord causedby vertical when the bottom section is tilted also assists in keepingsaid section in tllted position. To restore the bottom section to thenormal position shown in Figure 6, it is necessary merely to pull downthe mner end thereof by hand, slmultaneously pushing it through thebreak 5 until the slot 27 is in alignment with the flange portions 3whereupon the bottom section may be raised upwardly upon said flangeportions or pushed downwardly upon the flange portion 4, according tothe desired. When the bottom section of the 'shade is in engagement withthe flange portion 4 an absolutely weather-tight joint is formed betweenthe shade and sill of the casement.

While I have herein described what I believe to be an eflicient andpractical embodi 'ment of my invention, it is to be understood that theapplication of theinventive principle is not restricted to theconstruction herein disclosed, but that it may find physical expressionin many forms to which the appendedclaims, or any oneof 'them may beeneric.

aving described my invention what I claim as new and desire to secure byLetters Patent is 1. In combination, a flange adapted to extendlongitudinally of the sill of a casement, projecting toward the casementopening a slot to receive said flange in the lowermost position of saidshade, other sections operably connected to said bottom section toperform similar movements to and synchronously with the movements of thebottom "section, said bottom section being tiltable about a point in itsline of vertical travel when out of engagement with said flange but nearits lowermost position, and having a part thereof engaging said flangewhen said bottom section is tilted for holding said shade sections intilted position.

-2. A window shade including a top section having a slot .extendinglongitudlnally of the upper face thereof to receive a flange atthe topof a casement, a series of sect'ons freely suspended from said topsection, the u per-most of said depending sections being looselyconnected to the bottom face of said top section along a line extendinglongitudinally thereof, said top section being provided with a flangeextending downwardly at one side of the line of juncture between saidsuspended sections and said top section, and loosely connecting andintersecting a horizontal plane passing through said line of juncture.

3. i window shade including a'top seeits deflection from the position ofthe shade a. vertical and a vertically movable shade includbottomsection having a longitudinal.

. tion having a flat lower face, a series of depending sections, meanscarried bysaid top sections serially suspended, spaced lugs at the endsof said sections loosely embracing guide members for guiding saidsections in ath of movement, said sections being tiltab le relative tosaid guide members and means for simultaneously tilting said sections. 7

5. A window shade including telescopic serially depending sections eachhaving the shape of an inverted trough, said sections nesting togetherwhen telescoped and having slots adjacent their lower edges, rodsloosely passing through said slots for limiting the range of extensionof said sections, the edges of said sections being cut away to permitsaid rods to lie side by side when the sections are in fully telescopedposition.

6. A window shade including a top section and a bottom section,intermediate telescopicserially depending sections loosely connected tosaid top and bottom sections, said intermediate sections each having theshape of an inverted trough, and having at their ends grooves forloosely embracing guide members for guiding said sections in a verticalpath of movement, said intermediate and bottom sections having slotsadjacent their opposite edges and bein tiltable 7 relative to said guidemembers, rods loosely :mediately above it, said rods functioning asmeans for simultaneously tilting the intermediate sections when thebottom section is tilted. j

7;A window shade including a top sec'- A tion and a bottom section,intermediate telescopic serially depending sections loosely connected tosaid top and bottom sections,

said intermediate sectionseach having the shape of an inverted trough,said intermediate sections having grooves in their ends for looselyembracing guide members for guiding said sections in a vertical .pathofmovement, said intermediate and bottom sections being tiltablerelatively to guide members, lugs on the outer sides of saidintermediate and bottom sections, said lugs and the opposite sides ofsaid sections said being slotted, rods loosely engaging in saidtaneously tilting the intermediate sections slots, said rods being ofsuch length as to when the bottom section is tilted and said limit theextension of said telescopic secgrooves permitting said sections toassume 10 tions so that the apex of one always intera relatively closedposition whentilted.

5 sects the plane passing through the lower In testimony whereof I havehereunto set edges of the section immediately above it, my hand.

said rods functioning as means for simul- HENRY WILCOX METCALF.

